Home / 133,163.45-183,764.46-72,734.13

Finding the Fourth Proportional to 133,163.45, 183,764.46 and 72,734.13

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Solution

The fourth proportional to 133,163.45, 183,764.46 and 72,734.13 is: 100,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,163.45 : 183,764.46 = 72,734.13 : x
  2. Step 2: Convert to fraction form
    133,163.45/183,764.46 = 72,734.13/x
  3. Step 3: Cross multiply
    133,163.45x = 183,764.46 × 72,734.13
  4. Step 4: Simplify right side
    133,163.45x = 13,365,948,764.27
  5. Step 5: Solve for x
    x = 13,365,948,764.27/133,163.45
  6. Step 6: Final answer
    x = 100,372.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.